Plain Tulasi swarasa u can give 5ml twice daily

Sitopaladi churn half tsp +Honitus1tsp  3 times aday

Syrup swasaamrutham 1-1-1 10ml

Hello there, In elderly patients with Parkinson's disease also bedridden, cough during having food maybe because of food particles entering wind pipe, Please do make him sit in chest up position during having food.

Find out root cause of your problem by ayurved way diagnosis Correct it by ayurved way medicine diet and lifestyle corrections Finding out root cause and its cure is very important for improvement permanent cure Correct diagnosis by ayurved way is very important main factor in treatment Take any ayurved medicine after proper ayurved way diagnosis only for avoiding bad effects of intake

While feeding keep him on a slant sitting posture on the bed. Only fluids and soft finely mashed food ,bland food without spicy to be fed in small quantities. Tulsi cough syrup as Kasni of Mahirshi ayurveda co. Or Cough 15 from Revento can be given .Or Draksharishta can be given. Vasarishta also works